ISSN:
1439-6327
Keywords:
Urine androgens
;
Sex hormone binding globulin
;
Cyclists
;
Training
;
Competition
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Abstract This study was performed on 16 professional racing cyclists to examine changes in urine concentrations of androgen hormones (testosterone, epitestosterone, androsterone, etiocholanolone, 11-hydroxy-androsterone and 11-hydroxy-etiocholanolone) and plasma sex hormone binding globulin (SHBG) after training and after competition. The urinary concentrations of androgen hormones decreased during the period of training and increased during competition, this being the reverse of what happened to SHBG plasma concentrations. These changes would suggest that physical activity may have an influence on the elimination of androgen hormones and on the synthesis of its transporting protein SHBG.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00376767
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